Improvement in buffer-springs for railroad cars



UNITED STATES PATENT OFFICE.

CYRUS W. SALADEE, OF ST. GATHARINES, CANADA.

IMPROVEMENT lN BUFFER-SPRINGS FOR RAILROAD CARS.

Specification forming part of Letters Patent No. 135,369, dated January28, 1873.

To all whom it may concern:

Be it known that I, CYRUS W. SALADEE, of St. Catha-rines, in theDominion of Canada, h ave invented certain Improvements in Spring-Bufl'ers for Railway Cars, of which the following is a specificationembodying my invention:

Nature and Object.

The nature of my invention consists in the applicationof torsionalsprings to buffers or coupling for railway cars; and has for its objectthe construction of these parts with greater strength and permanencythan has heretofore been done in the application of any other form ofsprings adapted for this purpose.

The Dru u? 111 In the drawing, Figure 1 is a longitudinal section of oneend of a car taken through the center of the buffer. Fig.2 is acrosssection of the platform of the car and buffer taken through thecenter of the torsional spring 0. Fig. 3 is a top view of the buffer andthe attachments employed in securing and operating it in position uponthe body of the car. Fig. at is a side view of one of the boxes orbearings 6, receiving and rigidly holding the opposite ends of thespring 0; and Fig. 5 is a top view of the same.

A is the draw-head now in general use, and which is placed under the endof the platform of the car, the front end of which receives the couplinglink 9, and the opposite end so formed as to inclose the arm B, throughwhich the spring passes, and is there rigidly held by reason of thesquare hole through the arm B at its base corresponding with the squareof the spring, while the outer ends of the springs are in like mannerrigidly held in the boxes e. The upper end of the arm B is formed withrounded projections on each side, which fit between shoulders t and t inthe up per side of the draw-head A. On each side, of the arm B areformed sleeve-bearings or journals B, which fitinto boxesO andO securedto the bottom of the timbers D D by means of wrought-iron straps d (Imade to fit around the boxes, the sleeve-bearings rotating in the boxesto accommodate the action of the spring. These boxes 0 0, it will beseen by the dotted lines in Fig. 3, and the section in Fig. 2, extendinto the draw-head far enough on each side to form a stop for thedraw-head so as to prevent its movement beyond the required distanceeither forward or back from its present position.

The spring 0 is made of a number of plates of steel laid together untilthe required strength is obtained, or any of the solid forms oftorsional springs may be used.

A glance at the drawing is all-sufficient to clearly understand theconstruction and operation of the draw-head or buffer in combinationwith the torsional spring 0; yet I wish it distinctly understood that Ido not limit my claim to any particular combination of parts by which tosecure and operate the com bined draw-head or bufier and the torsionalspring. Neither do I limit my claim to the application of a singletorsional spring in combination with the buffer, since two or more maybe employed it experience shall demonstrate the necessity of such adegree of increased strength.

Claim.

I claim as my invention and desire to secure by Letters Patent- A bufferor coupling for railway cars pro vided with a torsional spring,substantially as and for the purpose set forth.

CYRUS W. SALADEE.

Witnesses:

JAMES MCBRIDE, FRANCIS TORRANCE.

